Doom 3 Sikkmod 1.2 Gameplay

System specs. Motherboard: Z77 Extreme 4 CPU: i7 2600k @ 4.8Ghz 1.328vt w/Kraken X60 Liquid Cooler RAM: 16GB of Corsair XMS3 1600Mhz DDR3 GPU: EVGA GTX 780 Ti Superclocked @ 1.25Ghz w/Kraken G10+Thermaltake Water 3.0 Performer Case: NZXT Phantom ATX Full Tower Gaming Case